Feasibility of Energy Dispersive X-Ray Fluorescence Determination of Gold in Soft Tissue for Clinical Applications.

Feasibility of Energy Dispersive X-Ray Fluorescence Determination of Gold in Soft Tissue for Clinical Applications.
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能量色散 X 射线荧光测定软组织中金的临床应用可行性。

DOI:
10.1039/c3ay40126j
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发表时间:
2013
期刊:
Analytical methods : advancing methods and applications
影响因子:
--
通讯作者:
O'Neal,DPatrick
O'Neal,DPatrick
中科院分区:
--
文献类型:
--
作者:
Magaña,IsidroB;Adhikari,Pratik;Smalley,MeganC;Eklund,Sven;O'Neal,DPatrick

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The feasibility of using EDXRF for a rapid quantitative analysis of gold in tumor tissue has been investigated. The protocol described here demonstrates that sample biopsies can be analyzed in as little as 8 hours, with minimal sample preparation. Samples were prepared by drying a 35 μL aliquot of tissue dissolved in KOH in a standard EDXRF cup on a Prolene® support, producing a thin sample. Calibration curves of XRF peak intensity (cps per mA) to the gold concentration (0–50 ppm) were prepared for liver, tumor, and a mix of tissue types. A linear regression demonstrated an R2 correlation of 0.93. Analysis of experimental samples showed that gold accumulation in tumors (5.8–41.3 ppm) was in agreement with previous studies, where samples were processed using INAA or ICP-MS. This report provides guidance for elemental analysis of gold in tissue in a shorter time span, showing potential for its use in a clinical setting.
使用 X 射线荧光分析测定金疗法引起的人体组织中的金积累。
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